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Light thermal insulation mortar with electromagnetic wave absorption function and construction method thereof

A technology of thermal insulation mortar and construction method, which is applied in the field of building materials, can solve the problems of narrow absorption range, high-frequency band, single function, and limited application range, and achieve the effect of eliminating influence and reducing reflection

Active Publication Date: 2010-11-10
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the cement concrete products involved in 200610098349.9, although the absorbing range is 2-16 GHz, the high-frequency band in the absorbing range is relatively narrow; on the other hand, the product is a poured modular material with a relatively single function, and its application range is limited

Method used

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  • Light thermal insulation mortar with electromagnetic wave absorption function and construction method thereof
  • Light thermal insulation mortar with electromagnetic wave absorption function and construction method thereof
  • Light thermal insulation mortar with electromagnetic wave absorption function and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040]

[0041]

[0042]Detection of microwave absorption performance: According to the bow method in GJB2038-94 standard, the dry-mixed mortar is tested at room temperature (25°C), and it shows that when the thickness of the mortar is 1cm, the electromagnetic wave has good performance in the frequency range of 100MHz~18GHz. Absorbing effect, the average reflectance is -7dB, and there is an absorption peak in the reflectance near the frequency of 2GHz, the peak value is -12dB; when the thickness of the mortar is 2cm, the electromagnetic wave has a good absorbing effect in the frequency range of 100MHz ~ 18GHz, the average reflectance The rate is -10dB, and there is an absorption peak in the reflectance near the frequency of 2GHz, the peak value is -20dB; when the thickness of the mortar is 3cm, the electromagnetic wave has a good absorbing effect in the frequency range of 100MHz ~ 18GHz, the average reflectance is -13dB, in There is an absorption peak in the reflectance a...

Embodiment 2

[0045]

[0046] To the detection of absorbing performance: by the method of embodiment one, test result sees figure 2 , Panel A indicates 100MHz~1.8GHz, panel B indicates 1.8GHz~18GHz. It shows that at room temperature (25°C), when the thickness of the mortar is 1cm, the electromagnetic wave has a good absorbing effect in the frequency range of 100MHz ~ 18GHz, the average reflectivity is -6dB, and the reflectivity around the frequencies of 5, 7, and 12GHz The absorption peaks are -17, -20, -25dB; when the thickness of the mortar is 2cm, the electromagnetic wave has a good absorbing effect in the frequency range of 100MHz ~ 18GHz, the average reflectance is -11dB, and the frequency is 4, 8, There is an absorption peak in the reflectivity near 11GHz, the peaks are -17, -20, -25dB respectively; when the thickness of the mortar is 3cm, the electromagnetic wave has a good absorbing effect in the frequency range of 100MHz ~ 18GHz, the average reflectivity is -13dB, at the freque...

Embodiment 3

[0049]

[0050] Detection of wave-absorbing performance: According to the method of Example 1, it is shown that at room temperature (25°C), when the thickness of the mortar is 1cm, the electromagnetic wave has a good wave-absorbing effect in the frequency range of 100MHz~18GHz, and the average reflectance is - 5dB, there is an absorption peak in the reflectivity near the frequency of 400MHz, the peak value is -12dB; when the thickness of the mortar is 2cm, the electromagnetic wave has a good absorbing effect in the frequency range of 100MHz ~ 18GHz, the average reflectivity is -10dB, and the frequency is 300MHz There is an absorption peak in the nearby reflectivity, the peak value is -13dB; when the thickness of the mortar is 3cm, the electromagnetic wave has a good absorbing effect in the frequency range of 100MHz ~ 18GHz, the average reflectivity is -13dB, and the reflectivity has an absorption peak near the frequency of 200MHz , the peak value is -15dB.

[0051] The meas...

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Abstract

The invention discloses light thermal insulation mortar with an electromagnetic wave absorption function and a construction method thereof, belonging to the field of building materials. The mortar is composed of a wave absorbent, a gelled material, a filler, a cementing material, lightweight aggregate, a water retention filler and a reinforcing filler. The light thermal insulation mortar of the invention has the advantages of frequency bandwidth absorption (100MHz-18GHz), good wave absorbing effect and heat insulating effect. The light thermal insulation mortar can be applied to constructing civil buildings and military electromagnetic invisible buildings.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a functional mortar capable of absorbing electromagnetic waves and having a thermal insulation effect and a construction process thereof. Background technique [0002] With the continuous improvement of people's living standards and the continuous acceleration of the pace of life, in order to facilitate our daily life, various equipment such as TVs, computers, refrigerators, microwave ovens, TV relay towers, and mobile phone signal transmitting stations have entered our lives. They not only bring us convenience, but also bring us harm to our bodies. It has been reported in the literature that the electromagnetic waves radiated by electronic equipment affect the cardiovascular system, immune and metabolic functions of the human body, and have adverse effects on the human visual system. Eyes are sensitive to electromagnetic waves, and excessive electromagnetic radiati...

Claims

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Application Information

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IPC IPC(8): C04B14/18C04B28/00
CPCC04B2111/00482C04B2111/00258C04B2111/28C04B28/02
Inventor 冀志江韩斌侯国艳
Owner CHINA BUILDING MATERIALS ACAD
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